
RKB TDIS 331617 tapered roller bearing
- Brand
- RKB
- Category
- Bearings
- Subcategory
- Tapered roller bearings
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
RKB TDIS 331617 belongs to tapered roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for TDIS 331617 and any equivalents.
Tapered roller bearings in the RKB TDIS series are built for duties where radial and axial forces arrive together. The cone and cup work as a matched pair, and their angled raceways create a line of contact that spreads stress across a broad area, which is what gives these bearings their stiffness and their capacity to carry heavy loads. Gearboxes, wheel axles and general industrial machinery are typical homes for them. MR Industrial Accessories LLC supplies the series in standard sizes.
Every reference in this line begins with the letters TDIS, followed by a block of digits. TDIS 328876, TDIS 328896 and TDIS 328934 illustrate how that numbering runs. The digits are catalog identifiers rather than measurements, and each one maps to a specific combination of cone and cup dimensions. That is why selection starts with the shaft seat, the housing bore and the assembled width you need, and only then moves to the matching TDIS code.
These bearings show up in gearboxes and speed reducers, on transmission shafts, in mining and cement operations, in food processing plants and on machine tools. Conveyor rollers, overhead cranes and farm equipment also rely on them. Shafts that must stay aligned while loads push in more than one direction are exactly the case these bearings were made for.
Selection depends on how large the loads are, which way they act, how fast the shaft turns and what the surrounding environment looks like. Dust or moisture calls for a sealed or shielded version. The lubricant has to suit the operating temperature, and the bearing must sit square in its housing so it does not pick up extra stress. An interference fit on the inner ring, together with a controlled axial clearance, helps the bearing reach its expected service life.
Other manufacturers offer tapered roller bearings that can cross to this series when the dimensions and internal design line up. A fair comparison covers the bore, outer diameter and width, and also the contact angle and the load rating. A competitor's code may have a TDIS counterpart, but the match should always be confirmed against the technical data of both makers.
To request a quote, send the part number or the measurements you need through WhatsApp or email. Our team answers quickly and can point you to equivalents or help you pick the right reference. If the bearing in your equipment has no readable marking, a photo or a set of dimensions is usually enough for us to identify it.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does TDIS indicate on an RKB bearing?
- It is the series designation for RKB tapered roller bearings. The digits that follow, as in TDIS 328876, separate one size from another within the line. They are catalog codes, not dimensions, and each one corresponds to a defined cone and cup size.
- How do I find the right TDIS bearing for my equipment?
- Start with the shaft and housing dimensions, then factor in the loads and speeds the application sees. With those details we can identify the TDIS code that fits. If you still have the original bearing, its measurements will also guide the selection.
- Can RKB TDIS bearings replace bearings from other brands?
- They can cross over when the main dimensions and the design match. Bore, outer diameter, width and load capacity are the values to compare. Send us the other brand's part number and we will tell you which RKB reference lines up.

